Germany, Denmark and the Netherlands say they plan to provide Ukraine with at least 100 refurbished Leopard 1 battle tanks.

The announcement on Tuesday comes after Germany agreed last month to allow deliveries of the more modern Leopard 2 tanks to Ukraine.

In a joint statement, the defence ministers of all three countries said the shipment of older Leopard 1 tanks was part of an effort “to support Ukraine in their endeavour to withstand Russian aggression”.

”(It) will significantly enhance Ukraine’s military potential for the restoration of their violated territorial integrity,” they said, adding that the delivery would occur “within the coming months” and include logistical support and training.

Ukrainian officials say they expect Russian forces to make a new drive in eastern and southern Ukraine, as the Kremlin strives to secure territory it  annexed in late September and where it claims its rule is welcomed.

The UK Ministry of Defence said that Russia is “requiring undermanned, inexperienced units to achieve unrealistic objectives due to political and professional pressure”.

“Russian leaders will likely continue to demand sweeping advances,” it added. “It remains unlikely that Russia can build up the forces needed to substantially affect the outcome of the war within the coming weeks.”

The Leopard 1, manufactured between the mid-1960s and the mid-1980s, was the first battle tank built for West Germany’s Bundeswehr. The German military hasn’t had any of the tanks since 2003.

Germany last month agreed to send 14 newer Leopard 2 A6 tanks from its military’s current stocks. The country’s Defense Ministry said Tuesday that the first Leopard 2s could arrive in Ukraine by the end of March. The first Ukrainian soldiers to be trained on the tanks departed for Germany this week.

Several other European countries have equipped their armies with Leopard 2s, and Germany’s move following weeks of mounting pressure meant that those nations could also give some of their stocks to Ukraine.